CN107324543B - Novel integrated water supply treatment device for oil field steam injection boiler - Google Patents
Novel integrated water supply treatment device for oil field steam injection boiler Download PDFInfo
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- CN107324543B CN107324543B CN201710700178.0A CN201710700178A CN107324543B CN 107324543 B CN107324543 B CN 107324543B CN 201710700178 A CN201710700178 A CN 201710700178A CN 107324543 B CN107324543 B CN 107324543B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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Abstract
The embodiment of the invention provides a novel integrated water supply treatment device for an oil field steam injection boiler, which comprises a power distribution mechanism, a control mechanism, a regeneration mechanism, a softening mechanism, a pump mechanism and a deoxidizing mechanism, wherein the power distribution mechanism is connected with the control mechanism; the power distribution mechanism comprises a power distribution cabinet and an incoming and outgoing line cabinet; the control mechanism is used for controlling all electric appliances, pumps and valves of the integrated water supply treatment; the regeneration mechanism at least comprises a test platform, a sampling pool, a salt pool and a sewage pool device; the softening mechanism comprises two groups of two-stage water softeners, and the four water softeners are arranged in a diamond shape, wherein two first-stage tanks are arranged in the parallel direction of the prying seat, and two second-stage tanks are arranged in the direction vertical to the prying seat; the mechanical pump mechanism comprises a salt pump, a raw water pump, a sewage pump, a vacuum pump, a primary booster pump and a secondary booster pump, and all the mechanical pumps are horizontally arranged oppositely; wherein the salt pond salt pump suction inlet is arranged in the middle of the salt pond, and the salt pond salt pump suction inlet is arranged at the bottom of the salt pond; the deoxidizing mechanism at least comprises a deaerator, a cooling water tank and a dosing adjusting device.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a novel integrated water supply treatment device for an oil field steam injection boiler.
Background
The water treatment equipment for movable steam injection boiler in oil field is a common oil field equipment, and its main function is to remove Ca contained in boiler feed water2+、Mg2+Ions to reduce the hardness of the water and eliminate dissolved oxygen. The system comprises two major system functions of feedwater softening and oxygen removal, partial auxiliary subsystems and five machine pumps.
The existing water treatment equipment for the movable steam injection boiler of the oil field has the following problems:
the softening functional area has complicated flow, unreasonable space structure and plane arrangement and large occupied space;
secondly, the equipment has single function, and other functions except the softening and deoxidizing functions are completed by the cooperation of external equipment, so that the integration is not strong;
the automation degree is low, all the operations are manually controlled, and the labor intensity is high;
auxiliary systems (such as pollution discharge, salt ponds and the like) are distributed and are external independent skid-mounted equipment, so that the occupied area is large, the flow connection is complex, and the flexibility and the maneuverability of the equipment are reduced;
the layout of the pump is unreasonable and can not reach the current noise control standard.
Disclosure of Invention
Aiming at the problems of water treatment equipment of an oil field movable steam injection boiler in the prior art, the technical problem to be solved by the embodiment of the invention is to provide a novel integrated water supply treatment device of the oil field steam injection boiler, which has a good treatment effect, is more efficient and has a simple structure, and at least partially solve the problems in the prior art.
In order to solve the above problems, an embodiment of the present invention provides a novel integrated water supply treatment device for an oil field steam injection boiler, including: comprises a power distribution mechanism, a control mechanism, a regeneration mechanism, a softening mechanism, a pump mechanism and a deoxidizing mechanism;
the power distribution mechanism comprises a power distribution cabinet and an incoming and outgoing line cabinet; wherein distribution mechanism sets up in water treatment sled seat gooseneck position, distribution mechanism includes: an incoming line cabinet, a compensation cabinet and an outgoing line cabinet; the lifting device also comprises a suspension inlet/outlet box arranged at the bottom of the prying seat;
the control mechanism is used for controlling all electric appliances, pumps and valves of the integrated water supply treatment;
the regeneration mechanism at least comprises: the device comprises a test platform, a sampling pool, a salt pool and a sewage pool;
the softening mechanism comprises two groups of two-stage water softeners, and the four water softeners are arranged in a diamond shape, wherein two first-stage tanks are arranged in the parallel direction of the prying seat, and two second-stage tanks are arranged in the direction vertical to the prying seat;
the mechanical pump mechanism comprises a salt pump, a raw water pump, a sewage pump, a vacuum pump, a primary booster pump and a secondary booster pump, and all the mechanical pumps are horizontally arranged oppositely; wherein the salt pond salt pump suction inlet is arranged in the middle of the salt pond, and the salt pond salt pump suction inlet is arranged at the bottom of the salt pond;
the deoxidizing mechanism at least comprises a deaerator, a cooling water tank and a dosing adjusting device.
Further, the salt pond comprises: the system comprises a salt pump outlet valve, a salt pump inlet valve, an integrated salt pond, a circulating/cleaning valve and a salt pump; wherein the inlet of the salt pump is connected with the integrated salt pond through a salt pump inlet valve, and the outlet is connected with the integrated salt pond through a circulating/cleaning valve and is connected with external equipment through a salt pump outlet valve.
Further, the external equipment comprises a sewage pump, an inlet of the sewage pump is connected with a salt pump outlet valve through a sewage pump inlet valve, an outlet of the sewage pump is connected with the salt pump through a sewage pump outlet valve and a salt pump outlet valve, and an outlet of the sewage pump is further connected with the integrated salt pool through a sewage pump outlet valve and a circulation/cleaning valve.
Further, the salt pump is connected with the salt pond through a salt pond cleaning pipeline provided with a fifth valve; the salt pump is also connected with the salt pond through a salt inlet pipeline provided with a first valve; the salt pump is also connected with the salt pond through a salt outlet pipeline provided with a third valve, and the salt outlet pipeline is also connected with a salt outlet through a second valve; wherein the salt outlet pipeline between the salt pump and the third valve is connected with the salt pond through a signal pipe provided with a fourth valve.
Further, wherein,
when water is added into the salt pond, the second valve, the third valve and the fourth valve are opened, the first valve is closed, softened water from water treatment enters the salt pond through the salt inlet and outlet pipeline 2, the salt pump inlet pipeline 1 and the observation pipeline 4, and the water adding function of the salt pond is realized;
when the salt pond circulates, the salt pump is started, the first valve, the third valve and the fourth valve are opened, the second valve and the low-concentration salt water on the upper layer of the salt pond enter the bottom of the salt pond through the pipeline 1, the filter, the salt pump and the pipeline 3, and the function of circulating and cyclizing salt is realized;
when salt is automatically fed, the first valve, the second valve and the fourth valve are opened, the third valve is closed, the salt pump is started, and the salt water with qualified concentration enters the water treatment water softener through the pipeline 1, the filter, the salt pump and the pipeline 2 to complete the salt feeding function;
when the salt pond is cleaned, the first valve and the fifth valve are opened, the second valve, the third valve and the fourth valve are closed, the salt pump is started, and sewage enters the bottom of the salt pond to wash impurities at the bottom;
when the salt pond discharges sewage, the fifth valve is opened, the other valves are closed, the sewage pump is started, and the salt pond sewage enters the sewage pump through the pipeline 5 and then is discharged into a single-well sewage pipeline.
Furthermore, a primary tank of the softening mechanism is connected with a secondary tank through an I-shaped pipeline; the I-shaped pipeline comprises two transverse pipes and a longitudinal pipe, wherein two ends of the two transverse pipes are respectively connected with the primary tank and the secondary tank, and the longitudinal pipe is connected with the two transverse pipes;
the water softener comprises two groups of two-stage water softeners, and four water softeners are arranged in a diamond shape, wherein two first-stage tanks are arranged in the parallel direction of the prying seat, and two second-stage tanks are arranged in the direction vertical to the prying seat; water pipes are arranged at the top and the bottom of the first-stage tank, a first valve is arranged on the water pipe at the top, and a fifth valve is arranged on the water pipe at the bottom; the top and the bottom of the secondary tank are provided with water pipes, the top water pipe is provided with an eighth valve, and the bottom water pipe is provided with a fourth valve; one end of the I-shaped pipeline is connected with the primary tank through the sixth valve at the upper part and the second valve at the lower part, and the other end of the I-shaped pipeline is connected with the secondary tank through the third valve at the upper part and the ninth valve at the lower part; wherein the two ends of the longitudinal pipe are respectively connected with the two transverse pipes through a seventh valve and an eleventh valve, and the eleventh valve is provided with a softened water outlet.
Further, wherein:
when the water softener normally operates, the first valve, the second valve, the seventh valve, the third valve and the fourth valve are opened, and the other valves are closed; raw water enters from a first valve of the first-stage tank, passes through the first-stage tank, the second valve, the seventh valve, the third valve, the second-stage tank and the fourth valve, and passes through the softened water of two-stage filtration from the fourth valve;
when the water softener is backwashed, the fifth valve, the sixth valve, the seventh valve and the eleventh valve are opened, and the other valves are closed; backwashing sewage enters from a fifth valve of the first-stage tank, passes through the first-stage tank, a sixth valve, a seventh valve and an eleventh valve, and is discharged from the eleventh valve after being backwashed in the first-stage tank;
when the water softener is fed with salt, the fourth valve, the third valve, the sixth valve, the second valve and the eleventh valve are opened, and the other valves are closed; the water enters from the fourth valve of the secondary tank, passes through the secondary tank, the third valve, the sixth valve, the primary tank, the second valve and the eleventh valve, and the regenerated brine is discharged from the eleventh valve;
when the water softener is replaced, the fourth valve, the third valve, the sixth valve, the second valve and the eleventh valve are opened, and the other valves are closed; the water enters from the fourth valve of the secondary tank, passes through the secondary tank, the third valve, the sixth valve, the primary tank, the second valve and the eleventh valve, and the displacement sewage is discharged from the eleventh valve;
when the water softener is used for normal washing, the first valve, the second valve and the eleventh valve are opened, and the other valves are closed; the water enters from the first valve, passes through the primary tank, the second valve and the eleventh valve, and the sewage flows out from the eleventh valve;
when the water softener is subjected to two-stage normal washing, the first valve, the second valve, the seventh valve, the third valve and the fourth valve are opened, and the other valves are closed; water enters from the first valve, passes through the first-stage tank, the second valve, the seventh valve, the third valve, the second-stage tank and the fourth valve, and sewage flows out from the fourth valve.
Furthermore, the assay platform comprises an assay cabinet and sampling pools at all levels, the assay cabinet is in a double-layer design, the lower layer stores medicines, and the upper layer stores assay vessels; salt pond, blowdown pond edge water treatment sled seat parallel arrangement, salt pond top design electric roller shutter door is convenient for unload salt.
Furthermore, the main cable is sent into the incoming cabinet through the incoming box, and is sent into the outgoing box and the corresponding equipment for integrated water treatment through the outgoing cabinet after compensation; wherein the distribution cable of integration water treatment facilities passes through the crane span structure and arranges to the afterbody from sled seat bottom center sill, and this distribution cable returns to motor wiring mouth on reaching corresponding machine pump district with vertical threading pipe.
The technical scheme of the invention has the following beneficial effects: above-mentioned technical scheme provides a novel oil field steam injection boiler integration feedwater treatment device, is applicable to the open-air activity in oil field steam injection station feedwater treatment system, has simple and convenient nimble, easily installation, transportation are convenient, the function integration, and degree of automation is high, easily operation, a great deal of advantages such as safe risk is few.
Drawings
FIG. 1 is a logic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of the salt pump of FIG. 1;
FIG. 3 is a schematic diagram of a water softening mechanism;
FIG. 4 is a schematic diagram of the structure of a salt pond;
FIG. 5 is a detailed logic flow diagram of FIG. 1;
FIG. 6 is a schematic view of a connection structure of two-stage soft water;
fig. 7 is a schematic diagram of the structure of the salt pond.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 7, the novel integrated feedwater treatment device for an oilfield steam injection boiler provided by the embodiment of the present invention includes: the utility model provides a novel oil field steam injection boiler integration feedwater treatment device, includes distribution mechanism, control mechanism, regeneration mechanism, softens mechanism, machine pump mechanism and deoxidization mechanism.
As shown in fig. 1, the power distribution mechanism includes 3 groups of power distribution cabinets and 1 group of incoming and outgoing line cabinets; the power distribution cabinet has the power supply capacity for integrated water treatment and has the power distribution capacity for the whole steam injection station; the inlet and outlet cabinet is suspended at the bottom of the frontal neck of the water treatment prying seat and is used for connecting a main cable to feed in and distributing power to all equipment of the steam injection station. Specifically, water treatment sled seat gooseneck department is arranged in to distribution mechanism includes: an incoming line cabinet, a compensation cabinet and an outgoing line cabinet; wherein the bottom of the prying seat is suspended with an inlet and outlet wire box. The main power is sent into the incoming line cabinet by the incoming line box, and is sent into the outgoing line box and the corresponding equipment of the integrated water treatment by the outgoing line cabinet after compensation. The distribution cable of the integrated water treatment equipment is arranged from the bottom middle beam of the prying seat to the tail part through the bridge, and returns to the motor wiring port through the vertical threading pipe after reaching the corresponding pump area.
The control mechanism is used for controlling all electric appliances, pumps and valves of the integrated water supply treatment. Specifically, the control mechanism controls the following devices: the water softener electric valve, the machine pump start and stop, the deaerator control, the salt pond and the sewage pond operate. The distribution path and the cable routing are arranged by adopting a middle beam at the bottom of the prying seat and are divided into 6 groups, namely a salt pond, a sewage pond, a water softener of the group A, a water softener of the group B, a pump and a deaerator. After the control circuit reaches the control position, the control circuit returns upwards by adopting a threading pipe, and the wiring in the threading pipe is marked by using Chinese characters and serial numbers of the control equipment according to the colors of red, green, yellow, red and black lines and the line numbers strictly.
The regeneration mechanism is provided with a test platform, a sampling pool, a salt pool, a sewage pool and other equipment; the chemical examination platform comprises an assay cabinet and sampling pools at all levels, wherein the assay cabinet is of a double-layer design, the lower layer stores medicines, and the upper layer stores assay vessels; the salt pond and the sewage disposal pond are arranged in parallel along the water treatment prying seat, and the electric rolling shutter door is designed at the top of the salt pond to facilitate salt discharge;
the softening mechanism comprises two groups of two-stage 4 resin tanks made of stainless steel; as shown in figure 3, the 4 resin tanks are arranged in a diamond shape, the centers of the tank bodies are arranged at the angular points of the diamond shape, and are connected through stainless steel round pipes and controlled by electric valves. As shown in figure 3, 4 resin tanks as water softeners are distributed in a diamond shape, and two groups of first-stage tanks A1/A2 are arranged along the parallel direction of the prying seat, and two groups of second-stage tanks B1/B2 are arranged along the vertical direction of the prying seat. The flow design of the water softener is according to the design requirement of an I shape, the periphery of the water softener is communicated with a corresponding valve through the I shape flow, and the inner side of the water softener is designed to be a U shape flow and a corresponding valve. Therefore, the water softener has the operation capacity according to the normal flow trend of A1-B1 and A2/B2; and simultaneously has the operation modes according to A1-B2 and A1/B1 or A1-A2 or B1-B2.
FIG. 6 shows a connection structure of a primary tank and a secondary tank; wherein:
when the water softener normally operates, the No. 1 valve, the No. 2 valve, the No. 7 valve, the No. 3 valve and the No. 4 valve are opened, and the other valves are closed; raw water enters the process 1, and qualified softened water is produced from the process 2.
When the water softener is backwashed, the valves 5, 6, 7 and 11 are opened, the other valves are closed, and the backwashing sewage is discharged from the process 3.
When the water softener enters salt, the valves 4, 3, 6, 2 and 11 are opened, the other valves are closed, and the regenerated brine is discharged from the process 3.
When the water softener is replaced, the valves No. 4, No. 3, No. 6, No. 2 and No. 11 are opened, the other valves are closed, and the replacement sewage is discharged from the process 3.
When the water softener is used for forward washing, the valves 1, 2 and 11 are opened, the other valves are closed, and sewage is discharged from the process 3.
When the water softener is washed positively for the second grade, valve No. 1, valve No. 2, valve No. 7, valve No. 3 and valve No. 4 are opened, the rest valves are closed, and sewage is discharged from the flow 2.
The pump mechanism comprises a salt pump, a raw water pump, a sewage pump, a vacuum pump, a primary booster pump and a secondary booster pump, and all the pump mechanisms are horizontally arranged oppositely. The salt pond salt pump suction inlet sets up in the middle part of salt pond, and the salt pond salt pump suction inlet sets up the bottom at the salt pond. Wherein as shown in fig. 2, the salt pond comprises: a salt pump outlet valve 1, a salt pump inlet valve 2, an integrated salt pond 3, a circulation/cleaning valve 4 and a salt pump 5; wherein the inlet of the salt pump 5 is connected with the integrated salt pond 3 through the salt pump inlet valve 2, and the outlet is connected with the integrated salt pond 3 through the circulating/cleaning valve 4 and is connected with external equipment through the salt pump outlet valve 1. Specifically, as shown in fig. 4, the external device may include a sewage pump 8, an inlet of the sewage pump 8 is connected to the salt pump outlet valve 1 through a sewage pump inlet valve 9, an outlet of the sewage pump 8 is connected to the salt pump 5 through a sewage pump outlet valve 7 and a salt pump outlet valve 6, and an outlet of the sewage pump 8 is further connected to the integrated salt pond 3 through a sewage pump outlet valve 7 and a circulation/cleaning valve 4.
When it runs, the flow is
Firstly, the salt feeding process is in a sequence of 3-2-5-1;
and the circulating salt dissolving process of the salt pond is in a sequence of 3-2-5-6-4.
Thirdly, the salt pond has an automatic cleaning function, and the cleaning process is a bottom washing 3-2-1-8-4 sequence;
the salt pond has a sewage discharge function, and the sewage discharge process is in a sequence of 3-4-6-1-9-8.
The deoxidization mechanism includes oxygen-eliminating device, coolant tank, adds medicine adjusting equipment at least, can also increase other treatment facility as required.
As shown in fig. 7, it is a schematic structural diagram of a salt pond, and its work flow is:
when the salt pond adds water, No. 2 valves, No. 3 valves, No. 4 valves are opened, and No. 1 valve is closed, comes demineralized water from water treatment and gets into the salt pond through salt outlet pipeline 2, salt pump inlet pipeline 1 and observation pipeline 4, realizes the salt pond function of adding water.
When the salt pond circulates, the salt pump is started, the valve No. 1, the valve No. 3 and the valve No. 4 are opened, the valve No. 2, and the low-concentration salt water on the upper layer of the salt pond enters the bottom of the salt pond through the pipeline 1, the filter, the salt pump and the pipeline 3, so that the function of circulating salt is realized.
When salt is automatically fed, the valve 1, the valve 2 and the valve 4 are opened, the valve 3 is closed, the salt pump is started, and the salt water with qualified concentration enters the water treatment water softener through the pipeline 1, the filter, the salt pump and the pipeline 2 to complete the salt feeding function.
When the salt pond is cleaned, the valves 1 and 5 are opened, the valves 2, 3 and 4 are closed, the salt pump is started, and sewage enters the bottom of the salt pond to wash impurities at the bottom;
when the salt pond discharges sewage, the No. 5 valve is opened, the other valves are closed, the sewage discharge pump is started, and the salt pond sewage enters the sewage discharge pump through the pipeline 5 and then is discharged into a single-well sewage discharge pipeline.
1) Initial start-up of equipment
The power distribution room transmits power, the control cabinet transmits power, each valve automatically restores to the initial position, and the pump is in a standby state. After clicking a start button of a control cabinet, the system monitors the water supply pressure and flow of a raw water pump, establishes the operation of a water softener after meeting requirements, starts a deaerator to reach the standard of vacuum degree after qualified softened water is detected in the outlet of the water softener, and opens a water supply valve to supply water to a steam injection boiler after the outlet water contains oxygen in a qualified manner.
2) Water softener operation control (refer to fig. 6)
When the water softener normally operates, the valves 1, 2, 7, 3 and 4 are opened, the rest valves are closed, raw water enters from the process 1, and qualified softened water is produced from the process 2.
When the water softener is backwashed, the valves 5, 6, 7 and 11 are opened, the other valves are closed, and the backwashing sewage is discharged from the process 3.
When the water softener enters salt, the valves 4, 3, 6, 2 and 11 are opened, the other valves are closed, and the regenerated brine is discharged from the process 3.
When the water softener is replaced, the valves No. 4, No. 3, No. 6, No. 2 and No. 11 are opened, the other valves are closed, and the replacement sewage is discharged from the process 3.
When the water softener is used for forward washing, the valves 1, 2 and 11 are opened, the other valves are closed, and sewage is discharged from the process 3.
When the water softener is washed positively for the second grade, valve No. 1, valve No. 2, valve No. 7, valve No. 3 and valve No. 4 are opened, the rest valves are closed, and sewage is discharged from the flow 2.
3) Salt pond operation control (refer to fig. 7)
When the salt pond adds water, No. 2 valves, No. 3 valves, No. 4 valves are opened, and No. 1 valve is closed, comes demineralized water from water treatment and gets into the salt pond through salt outlet pipeline 2, salt pump inlet pipeline 1 and observation pipeline 4, realizes the salt pond function of adding water.
When the salt pond circulates, the salt pump is started, the valve No. 1, the valve No. 3 and the valve No. 4 are opened, the valve No. 2, and the low-concentration salt water on the upper layer of the salt pond enters the bottom of the salt pond through the pipeline 1, the filter, the salt pump and the pipeline 3, so that the function of circulating salt is realized.
When salt is automatically fed, the valve 1, the valve 2 and the valve 4 are opened, the valve 3 is closed, the salt pump is started, and the salt water with qualified concentration enters the water treatment water softener through the pipeline 1, the filter, the salt pump and the pipeline 2 to complete the salt feeding function.
When the salt pond is cleaned, the valves 1 and 5 are opened, the valves 2, 3 and 4 are closed, the salt pump is started, and sewage enters the bottom of the salt pond to wash impurities at the bottom;
when the salt pond discharges sewage, the No. 5 valve is opened, the other valves are closed, the sewage discharge pump is started, and the salt pond sewage enters the sewage discharge pump through the pipeline 5 and then is discharged into a single-well sewage discharge pipeline.
The invention designs a simple, integrated and complete water treatment device, which has the following innovation points:
1. and (3) module layout: the skid-mounted water treatment system is designed to comprise six areas, namely a power distribution mechanism, a control mechanism, a regeneration mechanism, a softening mechanism, a pump mechanism and an oxygen removal mechanism;
2. sharing the flow: the invention has the function of respectively sharing 3 sets of processes of salt feeding, softening and pollution discharge. The common salt feeding process refers to the common salt feeding and water adding process and the common salt feeding process; the shared softening process refers to the intercommunicating and sharing of the A/B groups of water treatment; the sewage discharge flow sharing refers to the sharing of the automatic cleaning and sewage discharge flow of the salt pond.
3. The function is novel. The suction inlet of the salt pump of the salt pond moves from the bottom to the middle of the salt pond, and the salt feeding process is in the sequence of 3-2-5-1. The salt dissolving in the salt pond is designed by sucking from the middle part of the salt pond and discharging from the bottom of the salt pond, and the circulating salt dissolving process of the salt pond is in a sequence of 3-2-5-4. The salt pond has the function of utilizing a sewage pump to automatically clean.
4. And (5) noise control. The invention arranges a sound insulation wall between the pump region and the softening region, and the noise of the front end control region is reduced from original 60dB to 40dB in an isolation mode.
1) Functional area division
The integrated feedwater treatment device has 6 regions divided into the following functions:
the 1 st area is a power distribution area, and the area comprises 3 groups of power cabinets and 1 group of control cabinets. Wherein the switch board possesses to the integration water treatment power supply ability simultaneously, possesses to whole steam injection station distribution ability. The inlet and outlet cabinet is suspended at the bottom of the frontal neck of the water treatment prying seat and is used for connecting a main cable to feed in and distributing power to all equipment of the steam injection station.
The 2 nd area is a control area, and realizes the control of all electric appliances, pumps and valves of the integrated water supply treatment.
The 3 rd area is a regeneration area and comprises a test platform, a sampling pool, a salt pool, a sewage pool and other equipment. The chemical examination platform includes chemical examination cabinet and sampling basin at different levels, and the chemical examination cabinet is the double-deck design, and the medicine is deposited to the lower floor, and chemical examination household utensils are deposited to the upper strata. Salt pond, blowdown pond edge water treatment sled seat parallel arrangement, salt pond top design electric roller shutter door is convenient for unload salt.
The 4 th district is the softening point, and the softening point contains 4 resin tanks of two-stage two-sets, and the material adopts the rhombus to arrange for the stainless steel, and the rhombus angular point is arranged in to jar body center, connects through 2 "stainless steel pipe, uses electric valve control.
The 5 th area is a pump area which comprises a salt pump, a raw water pump, a sewage pump, a vacuum pump, a primary booster pump and a secondary booster pump, wherein all the pump areas are arranged in a horizontal opposite mode.
The 6 th area is a deoxidizing area and comprises a deaerator, a cooling water tank, a dosing adjusting device and the like.
2) Internal layout design
Power distribution design: the distribution room is arranged at the gooseneck of the water treatment prying seat and comprises 3 groups of cabinets, namely a wire inlet cabinet, a compensation cabinet and a wire outlet cabinet, wherein a wire inlet and outlet box is suspended at the bottom of the prying seat. The main power is sent into the incoming cabinet by the incoming box, and is sent into the outgoing box and the corresponding integrated water treatment equipment by the outgoing cabinet after compensation. The distribution cable of the integrated water treatment equipment is arranged from the middle beam of the bottom of the prying seat to the tail part through the bridge frame, and returns to the motor wiring port on the vertical threading pipe after reaching the corresponding pump area.
And (3) control design: the control cabinet controls the electric valve of the water softener, the start and stop of the pump, the control of the deaerator, the operation of the salt pond and the sewage pond. The distribution path and the cable routing are arranged by adopting a middle beam at the bottom of the prying seat and are divided into 6 groups, namely a salt pond, a sewage pond, a water softener of the group A, a water softener of the group B, a pump and a deaerator. After the control circuit reaches the control position, the control circuit returns upwards by adopting a threading pipe, and the wiring in the threading pipe is marked by using Chinese characters and serial numbers of the control equipment according to the colors of red, green, yellow, red and black lines and the line numbers strictly.
Designing a water softener: water softener design innovation 2 point: the water softener adopts a 'shape' layout design, and two groups of first-stage tanks are arranged along the parallel direction of the prying seat, and two groups of second-stage tanks are arranged perpendicular to the prying seat. Secondly, the flow design of the water softener is according to the design requirement of an I shape, the periphery of the water softener is communicated with a corresponding valve through the I shape flow, and the inner side of the water softener is designed to be a U shape flow and a corresponding valve. The water softener has the capability of running according to the normal flow trend of A1-B1 and A2/B2. And the operation modes are A1-B2 and A1/B1 or A1-A2 or B1-B2.
Designing a salt pond: the design innovation of the salt pond is 1 point: the salt pond salt pump suction inlet moves from the bottom of the salt pond to the middle part. The salt pond function innovation 4 points: the salt feeding process is in the sequence of 3-2-5-1. Secondly, the salt dissolving in the salt pond adopts the design of sucking from the middle part of the salt pond and discharging from the bottom of the salt pond, and the circulating salt dissolving process of the salt pond is in the sequence of 3-2-5-6-4. Thirdly, the salt pond has an automatic cleaning function, and the cleaning process is a bottom washing 3-2-1-8-4 sequence. The salt pond has a sewage discharge function, and the sewage discharge process is in a sequence of 3-4-6-1-9-8.
3) Normal operation control
(1) Initial start-up of equipment
The power distribution room transmits power, the control cabinet transmits power, each valve automatically restores to the initial position, and the pump is in a standby state. After clicking a start button of a control cabinet, the system monitors the water supply pressure and flow of a raw water pump, establishes the operation of a water softener after meeting requirements, starts a deaerator to reach the standard of vacuum degree after qualified softened water is detected in the outlet of the water softener, and opens a water supply valve to supply water to a steam injection boiler after the outlet water contains oxygen in a qualified manner.
(2) Water softener operation control
When the water softener normally operates, the valves 1, 2, 7, 3 and 4 are opened, the rest valves are closed, raw water enters from the process 1, and qualified softened water is produced from the process 2.
When the water softener is backwashed, the valves 5, 6, 7 and 11 are opened, the other valves are closed, and the backwashing sewage is discharged from the process 3.
When the water softener enters salt, the valves 4, 3, 6, 2 and 11 are opened, the other valves are closed, and the regenerated brine is discharged from the process 3.
When the water softener is replaced, the valves No. 4, No. 3, No. 6, No. 2 and No. 11 are opened, the other valves are closed, and the replacement sewage is discharged from the process 3.
When the water softener is used for forward washing, the valves 1, 2 and 11 are opened, the other valves are closed, and sewage is discharged from the process 3.
When the water softener is washed positively for the second grade, valve No. 1, valve No. 2, valve No. 7, valve No. 3 and valve No. 4 are opened, the rest valves are closed, and sewage is discharged from the flow 2.
(3) Salt pond operation control
When the salt pond adds water, No. 2 valves, No. 3 valves, No. 4 valves are opened, and No. 1 valve is closed, comes demineralized water from water treatment and gets into the salt pond through salt outlet pipeline 2, salt pump inlet pipeline 1 and observation pipeline 4, realizes the salt pond function of adding water.
When the salt pond circulates, the salt pump is started, the valve No. 1, the valve No. 3 and the valve No. 4 are opened, the valve No. 2, and the low-concentration salt water on the upper layer of the salt pond enters the bottom of the salt pond through the pipeline 1, the filter, the salt pump and the pipeline 3, so that the function of circulating salt is realized.
When salt is automatically fed, the valve 1, the valve 2 and the valve 4 are opened, the valve 3 is closed, the salt pump is started, and the salt water with qualified concentration enters the water treatment water softener through the pipeline 1, the filter, the salt pump and the pipeline 2 to complete the salt feeding function.
When the salt pond is cleaned, the valves 1 and 5 are opened, the valves 2, 3 and 4 are closed, the salt pump is started, and sewage enters the bottom of the salt pond to wash impurities at the bottom;
when the salt pond discharges sewage, the No. 5 valve is opened, the other valves are closed, the sewage discharge pump is started, and the salt pond sewage enters the sewage discharge pump through the pipeline 5 and then is discharged into a single-well sewage discharge pipeline.
The applicable conditions of the invention are as follows: the water supply treatment system is suitable for the water supply treatment system of the steam injection station for field activities in the oil field, and has the advantages of simplicity, flexibility, easiness in installation, convenience in transportation, function integration, high automation degree, easiness in operation, less safety risk and the like.
The embodiment of the invention provides an integrated feedwater treatment device under the condition that construction requirements need or work efficiency is improved, which has the following advantages: the integrated water supply treatment device has the advantages of light and convenient design, simplicity, complete functions, and functions of water supply softening, deoxidization, resin regeneration, pollution discharge, centralized power distribution and noise treatment.
(1) The method realizes flow sharing and optimization and realizes simple and convenient functions by skillfully designing the layout structure of the resin tank.
(2) All devices of boiler water supply are integrated through 'function integration', a skid-mounted structure is formed, equipment allocation and occupied area are reduced, and flexibility and maneuverability of the equipment are improved.
(3) The automatic lifting device is automatically lifted through one key, all manual operations are completely automatically operated and switched, and manual operations are reduced.
(4) The functional layout of a working area, a pump area and an operation area is realized through reasonable layout, noise hazard and risk points are reduced, and the safety is improved.
(5) Logic design and PLC program realization functions, and is applicable to the unique design concept of the equipment.
The second improvement of the embodiment of the invention in the aspects of appearance framework, integrated function and automation degree lies in flexibility, safety and design concept.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A novel integrated water supply treatment device for an oil field steam injection boiler is characterized by comprising a power distribution mechanism, a control mechanism, a regeneration mechanism, a softening mechanism, a pump mechanism and a deoxidizing mechanism;
the power distribution mechanism comprises a power distribution cabinet and an incoming and outgoing line cabinet; wherein distribution mechanism sets up in water treatment sled seat gooseneck position, distribution mechanism includes: an incoming line cabinet, a compensation cabinet and an outgoing line cabinet; the lifting device also comprises a suspension inlet/outlet box arranged at the bottom of the prying seat;
the control mechanism is used for controlling all electric appliances, pumps and valves of the integrated water supply treatment;
the regeneration mechanism at least comprises: the device comprises a test platform, a sampling pool, a salt pool and a sewage pool;
the softening mechanism comprises two groups of two-stage water softeners, and the four water softeners are arranged in a diamond shape, wherein two first-stage tanks are arranged in the parallel direction of the prying seat, and two second-stage tanks are arranged in the direction vertical to the prying seat;
the mechanical pump mechanism comprises a salt pump, a raw water pump, a sewage pump, a vacuum pump, a primary booster pump and a secondary booster pump, and all the mechanical pumps are horizontally arranged oppositely; wherein the salt pond salt pump suction inlet is arranged in the middle of the salt pond, and the salt pond salt pump suction inlet is arranged at the bottom of the salt pond;
the deoxidizing mechanism at least comprises a deaerator, a cooling water tank and a dosing adjusting device;
the water softener flow design meets the design requirement of an I-shaped structure, the periphery of the water softener is communicated with a corresponding valve through the I-shaped flow, and the inner side of the water softener is designed to be a U-shaped flow and a corresponding valve;
wherein one primary tank of the softening mechanism is connected with the secondary tank through an I-shaped pipeline; the I-shaped pipeline comprises two transverse pipes and a longitudinal pipe, wherein two ends of the two transverse pipes are respectively connected with the primary tank and the secondary tank, and the longitudinal pipe is connected with the two transverse pipes;
the water softener comprises two groups of two-stage water softeners, and four water softeners are arranged in a diamond shape, wherein two first-stage tanks are arranged in the parallel direction of the prying seat, and two second-stage tanks are arranged in the direction vertical to the prying seat; water pipes are arranged at the top and the bottom of the first-stage tank, a first valve is arranged on the water pipe at the top, and a fifth valve is arranged on the water pipe at the bottom; the top and the bottom of the secondary tank are provided with water pipes, the top water pipe is provided with an eighth valve, and the bottom water pipe is provided with a fourth valve; one end of the I-shaped pipeline is connected with the primary tank through the sixth valve at the upper part and the second valve at the lower part, and the other end of the I-shaped pipeline is connected with the secondary tank through the third valve at the upper part and the ninth valve at the lower part; wherein, two ends of the longitudinal pipe are respectively connected with the two transverse pipes through a seventh valve and an eleventh valve, and the eleventh valve is provided with a softened water outlet;
when the water softener normally operates, the first valve, the second valve, the seventh valve, the third valve and the fourth valve are opened, and the other valves are closed; raw water enters from a first valve of the first-stage tank, passes through the first-stage tank, the second valve, the seventh valve, the third valve, the second-stage tank and the fourth valve, and passes through the softened water of two-stage filtration from the fourth valve;
when the water softener is backwashed, the fifth valve, the sixth valve, the seventh valve and the eleventh valve are opened, and the other valves are closed; backwashing sewage enters from a fifth valve of the first-stage tank, passes through the first-stage tank, a sixth valve, a seventh valve and an eleventh valve, and is discharged from the eleventh valve after being backwashed in the first-stage tank;
when the water softener is fed with salt, the fourth valve, the third valve, the sixth valve, the second valve and the eleventh valve are opened, and the other valves are closed; the water enters from the fourth valve of the secondary tank, passes through the secondary tank, the third valve, the sixth valve, the primary tank, the second valve and the eleventh valve, and the regenerated brine is discharged from the eleventh valve;
when the water softener is replaced, the fourth valve, the third valve, the sixth valve, the second valve and the eleventh valve are opened, and the other valves are closed; the water enters from the fourth valve of the secondary tank, passes through the secondary tank, the third valve, the sixth valve, the primary tank, the second valve and the eleventh valve, and the displacement sewage is discharged from the eleventh valve;
when the water softener is used for normal washing, the first valve, the second valve and the eleventh valve are opened, and the other valves are closed; the water enters from the first valve, passes through the primary tank, the second valve and the eleventh valve, and the sewage flows out from the eleventh valve;
when the water softener is subjected to two-stage normal washing, the first valve, the second valve, the seventh valve, the third valve and the fourth valve are opened, and the other valves are closed; water enters from the first valve, passes through the first-stage tank, the second valve, the seventh valve, the third valve, the second-stage tank and the fourth valve, and sewage flows out from the fourth valve.
2. The integrated feed water treatment device of the novel oil field steam injection boiler according to claim 1, wherein the salt pond comprises: the system comprises a salt pump outlet valve, a salt pump inlet valve, an integrated salt pond, a circulating/cleaning valve and a salt pump; wherein the inlet of the salt pump is connected with the integrated salt pond through a salt pump inlet valve, and the outlet is connected with the integrated salt pond through a circulating/cleaning valve and is connected with external equipment through a salt pump outlet valve.
3. The integrated feed water treatment device for the steam injection boiler in the oil field as claimed in claim 2, wherein the external equipment comprises a sewage pump, the inlet of the sewage pump is connected with the salt pump outlet valve through the sewage pump inlet valve, the outlet of the sewage pump is connected with the salt pump through the sewage pump outlet valve and the salt pump outlet valve, and the outlet of the sewage pump is further connected with the integrated salt pond through the sewage pump outlet valve and the circulation/cleaning valve.
4. The integrated water supply treatment device for the novel oil field steam injection boiler according to claim 3, wherein the salt pump is connected with the salt pond through a salt pond cleaning pipeline provided with a fifth valve; the salt pump is also connected with the salt pond through a salt inlet pipeline provided with a first valve; the salt pump is also connected with the salt pond through a salt outlet pipeline provided with a third valve, and the salt outlet pipeline is also connected with a salt outlet through a second valve; wherein the salt outlet pipeline between the salt pump and the third valve is connected with the salt pond through a signal pipe provided with a fourth valve.
5. The integrated feed water treatment device of the novel oil field steam injection boiler according to claim 4, wherein,
when water is added into the salt pond, the second valve, the third valve and the fourth valve are opened, the first valve is closed, softened water from water treatment enters the salt pond through the salt inlet and outlet pipeline, the salt pump inlet pipeline and the observation pipeline, and the water adding function of the salt pond is realized;
when the salt pond circulates, the salt pump is started, the first valve, the third valve and the fourth valve are opened, the second valve and the low-concentration salt water on the upper layer of the salt pond enter the bottom of the salt pond through the pipeline, the filter, the salt pump and the pipeline, and the function of circulating and cyclizing salt is realized;
when salt is automatically fed, the first valve, the second valve and the fourth valve are opened, the third valve is closed, the salt pump is started, and the salt water with qualified concentration enters the water treatment water softener through the pipeline, the filter, the salt pump and the pipeline to complete the salt feeding function;
when the salt pond is cleaned, the first valve and the fifth valve are opened, the second valve, the third valve and the fourth valve are closed, the salt pump is started, and sewage enters the bottom of the salt pond to wash impurities at the bottom;
when the salt pond discharges sewage, the fifth valve is opened, the other valves are closed, the sewage pump is started, and the salt pond sewage enters the sewage pump through the pipeline and then is discharged into the single-well sewage pipeline.
6. The integrated water supply treatment device for the novel oilfield steam injection boiler, according to claim 1, wherein the chemical examination platform comprises a chemical examination cabinet and sampling pools at all levels, the chemical examination cabinet is of a double-layer design, the lower layer stores chemicals, and the upper layer stores chemical examination utensils; salt pond, blowdown pond edge water treatment sled seat parallel arrangement, salt pond top design electric roller shutter door is convenient for unload salt.
7. The integrated water supply treatment device for the novel oil field steam injection boiler according to claim 1, wherein the main cable is sent into the incoming cabinet through the incoming box, and is sent into the outgoing box and corresponding equipment for integrated water treatment through the outgoing cabinet after compensation; wherein the distribution cable of integration water treatment facilities passes through the crane span structure and arranges to the afterbody from sled seat bottom center sill, and this distribution cable returns to motor wiring mouth on reaching corresponding machine pump district with vertical threading pipe.
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